A multistream heat exchanger model with enthalpy feasibility

Kyungjae Tak, Hweeung Kwon, Jaedeuk Park, Jae Hyun Cho, Il Moon

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A temperature feasibility constraint is an important part of multistream heat exchanger (MSHE) modeling. However, temperature feasibility of an MSHE model makes a numerical issue when a physical property package is used to obtain highly accurate temperature-enthalpy relationships in equation-oriented modeling environment. To resolve the issue, this study proposes a new MSHE model with enthalpy feasibility using the fact that enthalpy is a monotonically increasing function of temperature. A natural gas liquefaction process, called a single mixed refrigeration process, is optimized using the proposed MSHE model under an equation-oriented modeling environment with a physical property package as a case study.

Original languageEnglish
Pages (from-to)81-88
Number of pages8
JournalComputers and Chemical Engineering
Volume115
DOIs
Publication statusPublished - 2018 Jul 12

Bibliographical note

Funding Information:
This research was supported by a grant from the LNG Plant R&D Center funded by the Ministry of Land, Infrastructure and Transport ( MOLIT ) of the Korean government and also respectfully supported by Engineering Development Research Center (EDRC) funded by the Ministry of Trade, Industry & Energy ( MOTIE ).

Funding Information:
This research was supported by a grant from the LNG Plant R&D Center funded by the Ministry of Land, Infrastructure and Transport (MOLIT) of the Korean government and also respectfully supported by Engineering Development Research Center (EDRC) funded by the Ministry of Trade, Industry & Energy (MOTIE).

Publisher Copyright:
© 2018 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Computer Science Applications

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